package com.oocl.shopping.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.oocl.shopping.pojo.Customer;

/**
 * Servlet Filter implementation class SecFilter
 */
public class SecFilter implements Filter {

    /**
     * Default constructor. 
     */
    public SecFilter() {
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see Filter#destroy()
	 */
	public void destroy() {
		// TODO Auto-generated method stub
	}

	/**
	 * @see Filter#doFilter(ServletRequest, ServletResponse, FilterChain)
	 */
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
		HttpServletRequest req = (HttpServletRequest) request;
		HttpServletResponse resp =(HttpServletResponse) response;
		Customer cust = (Customer) req.getSession().getAttribute("cust");
		if(cust == null){
			resp.sendRedirect("../login.jsp");
		}else{
			chain.doFilter(request, response);
		}
		
	}

	@Override
	public void init(FilterConfig arg0) throws ServletException {
		// TODO Auto-generated method stub
		
	}


}
